When you are ready to blog, begin by going to the dashboard and selecting "new Post" (not new page). The post editor will allow you to create your post to look as you desire. If you want to add a photo or two, you can drag and drop them in. They will be added to the media library and then you can select "add to post" (bottom right) when ready to add the photo to your post. Be sure to click on the "Publish" button on the right side of the screen when done.